Why are angles misperceived?

Journal Article (Journal Article)

Although it has long been apparent that observers tend to overestimate the magnitude of acute angles and underestimate obtuse ones, there is no consensus about why such distortions are seen. Geometrical modeling combined with psychophysical testing of human subjects indicates that these misperceptions are the result of an empirical strategy that resolves the inherent ambiguity of angular stimuli by generating percepts of the past significance of the stimulus rather than the geometry of its retinal projection.

Full Text

Duke Authors

Cited Authors

  • Nundy, S; Lotto, B; Coppola, D; Shimpi, A; Purves, D

Published Date

  • May 2000

Published In

Volume / Issue

  • 97 / 10

Start / End Page

  • 5592 - 5597

PubMed ID

  • 10805814

Pubmed Central ID

  • PMC25873

Electronic International Standard Serial Number (EISSN)

  • 1091-6490

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.97.10.5592


  • eng